Engine-side DTC List

Engine-side Trouble

Engine-side DTC List

DTC DTC name Detected item Preconditions when DTC is set

0087 Abnormally low common rail pressure (supply pump not sending pressure) Common rail pressure does not rise to necessary range. At least 900 min-1 DTC setting conditions

Actual common rail pressure falls to 15 MPa or lower Trouble judgment time Behavior during trouble

About 3 sec. High engine vibration, unstable idling speed, output reduction, revving problems, black smoke, and excess output are possible. Back-up: Injection quantity restriction 3 (multi-injection stop) Target common rail pressure upper limit (80 MPa)

0088 Abnormally high common rail pressure (1st stage)

Abnormally high common rail pressure (2nd stage)

0089 Common rail pressure abnormality (supply pump sending too much pressure)

0090 SCV (suction control valve) drive system disconnection, +B short, or GND short

0107 Atmospheric pressure sensor circuit abnormality (abnormally low voltage) Abnormal increase in common rail pressure ・ Key switch input voltage is 18 V or higher. ・ DTC: 0088, 0192, 0193, and 1635 are not detected. ・ Actual common rail pressure is at least 2 MPa and engine speed is at least 70 min-1. Common rail pressure exceeds 185 MPa.

Abnormal increase in common rail pressure ・ Key switch input voltage is 18 V or higher. ・ DTC: 0088, 0192, 0193, and 1635 are not detected. ・ Actual common rail pressure is at least 2 MPa and engine speed is at least 70 min-1 . Common rail pressure abnormality (1st stage) occurs and common rail pressure exceeds 190 MPa.

Abnormal increase in common rail pressure

SCV or harness disconnection or short ・ Key switch input voltage is 18 V or higher. ・ DTC: 0089, 0192, 0193, and 1635 are not detected. ・ Engine coolant temperature at least 60 ℃ and engine speed at least 375 min-1 ・ The ratio for the fuel flow command signal to the

SCV (suction control valve) is 40 % or less, or the SCV target pressure send quantity is 90 mm3/ sec. or less. ・ Main relay power supply voltage is 18 V or higher. ・ DTC: 1630 is not detected. ・ The SCV drive duty is in the range of 10% or more and 90% or less.

Sensor or harness disconnection, short, deterioration ・ Key switch input voltage is 18 V or higher. ・ DTC: 1630, 1632 are not detected. The actual common rail pressure is at least 40 MPa above the target common rail pressure.

The SCV drive milli-amp exceeds the 2400 mA or longer, or the SCV drive milli-amp below the 50 mA, or the difference between the target and the actual milli-amp exceeds the 1000 mA or longer. Atmospheric pressure sensor voltage is below 0.5 V. About 5 sec. High engine vibration, unstable idling speed, output reduction, revving problems, black smoke, and excess output are possible. Back-up: Injection quantity restriction 3 (multi-injection stop) Target common rail pressure upper limit (80 MPa) About 5 sec. High engine vibration, unstable idling speed, output reduction, revving problems, black smoke, and excess output are possible. Back-up: Injection quantity restriction 3 (multi-injection stop) Target common rail pressure upper limit (80 MPa) About 5 sec. High engine vibration, unstable idling speed, output reduction, revving problems, black smoke, and excess output are possible. Back-up: Injection quantity restriction 3 (multi-injection stop) Target common rail pressure upper limit (80 MPa)

About 2 sec. Due to disconnection or short, stalling and revving are both possible, as well as black smoke and excess output Back-up: Injection quantity restriction 3 (multi-injection stop) Target common rail pressure upper limit (80 MPa)

About 5 sec. For backup equivalent to 2000 m ・ Black smoke at high altitude ・ Insufficient output at low altitude Back-up: Atmospheric pressure default value setting (80 kPa) EGR stop Recovery from failure Conceivable cause

*1 Fuel system clogged (element), line (hose), etc. blocked Wiring problem (short) between ECM and common rail pressure sensor Injector problem Common rail pressure sensor problem Supply pump problem Pressure limiter problem *1 Fuel system line (hose), etc. blocked Air in fuel system (check hose connection) Common rail pressure sensor problem Supply pump problem

*1

*1 Common rail pressure sensor problem Supply pump problem ECM, SCV, common rail pressure sensor connector connection problem

*2 SCV problem Wiring problem (short, disconnection, high resistance) between ECM and SCV, ECM internal problem

*2 Wiring problem (disconnection, short, high resistance) between ECM and atmospheric pressure sensor Atmospheric pressure sensor problem ECM internal problem

DTC DTC name Detected item Preconditions when DTC is set

0108 Atmospheric pressure sensor circuit abnormality (abnormally high voltage) Sensor or harness short ・ Key switch input voltage is 18 V or higher. ・ DTC: 1630, 1632 are not detected.

0112 IAT (intake air temperature) sensor abnormality (abnormally low voltage) Sensor or harness short ・ Key switch input voltage is 18 V or higher. ・ DTC: 1630, 1632 are not detected.

0113 IAT (intake air temperature) sensor abnormality (abnormally high voltage) Sensor or harness disconnection, short, deterioration ・ Key switch input voltage is 18 V or higher. ・ DTC: 1630, 1632 are not detected. ・ At least 3 min. passed after engine start.

0117 ECT (engine coolant temperature) sensor abnormality (abnormally low voltage) Sensor or harness short ・ Key switch input voltage is 18 V or higher. ・ DTC: 1630, 1633 are not detected.

0118 ECT (engine coolant temperature) sensor abnormality (abnormally high voltage) Sensor or harness disconnection, short, breakage ・ Key switch input voltage is 18 V or higher. ・ DTC: 1630, 1633 are not detected. ・ At least 3 min. passed after engine start.

0182 FT (fuel temperature) sensor abnormality (abnormally low voltage) 0183 FT (fuel temperature) sensor abnormality (abnormally high voltage) Sensor or harness short ・ Key switch input voltage is 18 V or higher. ・ DTC: 1630, 1633 are not detected.

Sensor or harness disconnection, short, breakage ・ Key switch input voltage is 18 V or higher. ・ DTC: 1630, 1633 are not detected. ・ At least 3 min. passed after engine start. DTC setting conditions

Atmospheric pressure sensor voltage is above 3.8 V.

IAT sensor voltage is below 0.1 V.

IAT sensor voltage is above 4.95 V.

ECT sensor voltage is below 0.1 V.

ECT sensor voltage is above 4.85 V.

FT sensor voltage is below 0.1 V. Trouble judgment time Behavior during trouble

About 4 sec. For backup equivalent to 2000 m ・ Black smoke at high altitude ・ Insufficient output at low altitude Back-up: Atmospheric pressure default value setting (80 kPa) EGR stop About 4 sec. Possibility of white smoke when starting at low temperature Back-up: Intake air temperature default value setting (starting: -10 ℃ , running: 25 ℃ ) EGR stop About 4 sec. Possibility of white smoke when starting at low temperature Back-up: Intake air temperature default value setting (starting: -10 ℃ , running: 25 ℃ ) EGR stop About 4 sec. Possibility of starting worsening at low temperatures and black smoke being produced, and output reductions in some cases Back-up: Engine coolant temperature default value setting (starting: -20 ℃ , running: 80 ℃ ) EGR stop About 4 sec. Normal temperature: Possibility of black smoke during starting and increased engine combustion noise. During warm-up with low outside temperature: Possibility of unstable idling speed, stalling, and white smoke Back-up: Engine coolant temperature default value setting (starting: -20 ℃ , running: 80 ℃ ) EGR stop About 4 sec. Problems with machine operability Back-up: Fuel temperature default value setting (starting: -20 ℃ , running: 70 ℃ )

FT sensor voltage is above 4.85 V. About 4 sec. Nothing in particular Back-up: Fuel temperature default value setting (starting: -20 ℃ , running: 70 ℃ )

0192 Common rail pressure sensor abnormality (abnormally low voltage) Sensor or harness short ・ Key switch input voltage is 18 V or higher. ・ DTC: 1630, 1635 are not detected. Common rail pressure sensor voltage is below 0.7 V. About the same time as occurrence Blow up fault, hunting Output reduction Back-up: Injection quantity restriction 2 (multi-injection stop) Target common rail pressure upper limit (80 MPa) EGR stop Switches the control to SCV (suction control valve) compulsory drive. Recovery from failure Conceivable cause

*2 Wiring problem (disconnection, short, high resistance) between ECM and atmospheric pressure sensor Atmospheric pressure sensor problem ECM internal problem

*2 (3 - 10 min. required for trouble judgment) Wiring problem (short) between ECM and IAT sensor, IAT sensor defect ECM internal problem

*2 (3 - 10 min. required for trouble judgment) Wiring problem (disconnection, short, high resistance) between ECM and IAT sensor IAT sensor problem ECM internal problem

*2 (3 - 10 min. required for trouble judgment) Wiring problem (short) between ECM and ECT sensor ECT sensor problem ECM internal problem

*2 (3 - 10 min. required for trouble judgment) Wiring problem (disconnection, short, high resistance) between ECM and ECT sensor ECT sensor problem ECM internal problem

*2 (3 - 10 min. required for trouble judgment) Wiring problem (short) between ECM and FT sensor FT sensor (supply pump) problem ECM internal problem

*2 (3 - 10 min. required for trouble judgment)

Wiring problem (disconnection, short, high resistance) between ECM and FT sensor FT sensor (supply pump problem) ECM internal problem *2 Wiring problem (disconnection, short, high resistance) between ECM and common rail Common rail pressure sensor (common rail) problem ECM internal problem

DTC DTC name Detected item Preconditions when DTC is set

0193 Common rail pressure sensor abnormality (abnormally high voltage) Sensor or harness disconnection, short, breakage ・ Key switch input voltage is 18 V or higher. ・ DTC: 1630, 1635 are not detected. DTC setting conditions

Common rail pressure sensor voltage is above 4.5 V.

Trouble judgment time About the same time as occurrence

0201 No. 1 cylinder injector drive system disconnection No. 1 cylinder injector electrical wiring disconnection or short ・ Main relay power supply voltage is 18 V or higher. ・ At least 70 min-1 ・ DTC: 0201, 0611, 1261 are not detected. No No. 1 cylinder injector monitor input signal About 2.4 sec.

0202 No. 2 cylinder injector drive system disconnection No. 2 cylinder injector electrical wiring disconnection or short ・ Main relay power supply voltage is 18 V or higher. ・ At least 70 min-1 ・ DTC: 0202, 0611, 1261 are not detected. No No. 2 cylinder injector monitor input signal About 2.4 sec.

0203 No. 3 cylinder injector drive system disconnection No. 3 cylinder injector electrical wiring disconnection or short ・ Main relay power supply voltage is 18 V or higher. ・ At least 70 min-1 ・ DTC: 0203, 0611, 1261 are not detected. No No. 3 cylinder injector monitor input signal About 2.4 sec.

0204 No. 4 cylinder injector drive system disconnection No. 4 cylinder injector electrical wiring disconnection or short ・ Main relay power supply voltage is 18 V or higher. ・ At least 70 min-1 ・ DTC: 0204, 0612, 1262 are not detected. No No. 4 cylinder injector monitor input signal About 2.4 sec. Behavior during trouble

Possibility of engine stalling Output reduction Back-up: Injection quantity restriction 2 (multi-injection stop) Target common rail pressure upper limit (80 MPa) EGR stop Switches the control to SCV (suction control valve) compulsory drive. High engine vibration, unstable idling speed, output reduction, revving problem Back-up: No. 1 cylinder injector injection stop, EGR stop

High engine vibration, unstable idling speed, output reduction, revving problem Back-up: No. 2 cylinder injector injection stop, EGR stop

High engine vibration, unstable idling speed, output reduction, revving problem Back-up: No. 3 cylinder injector injection stop, EGR stop

High engine vibration, unstable idling speed, output reduction, revving problem Back-up: No. 4 cylinder injector injection stop, EGR stop Recovery from failure Conceivable cause

*2 Wiring problem (disconnection, short, high resistance) between ECM and common rail Common rail pressure sensor (common rail) problem ECM internal problem

*1 Wiring problem (disconnection, short, high resistance) between ECM and No. 1 cylinder injector intermediate connector No. 1 cylinder injector terminal looseness Wiring problem (disconnection, high resistance) between No. 1 cylinder injector intermediate connector and No. 1 cylinder injector terminal No. 1 cylinder injector problem ECM internal problem *1 Wiring problem (disconnection, short, high resistance) between ECM and No. 2 cylinder injector intermediate connector No. 2 cylinder injector terminal looseness Wiring problem (disconnection, high resistance) between No. 2 cylinder injector intermediate connector and No. 2 cylinder injector terminal No. 2 cylinder injector problem ECM internal problem *1 Wiring problem (disconnection, short, high resistance) between ECM and No. 3 cylinder injector intermediate connector No. 3 cylinder injector terminal looseness Wiring problem (disconnection, high resistance) between No. 3 cylinder injector intermediate connector and No. 3 cylinder injector terminal No. 3 cylinder injector problem ECM internal problem *1 Wiring problem (disconnection, short, high resistance) between ECM and No. 4 cylinder injector intermediate connector No. 4 cylinder injector terminal looseness Wiring problem (disconnection, high resistance) between No. 4 cylinder injector intermediate connector and No. 4 cylinder injector terminal No. 4 cylinder injector problem ECM internal problem

DTC DTC name Detected item Preconditions when DTC is set

205 No. 5 cylinder injector drive system disconnection No. 5 cylinder injector electrical wiring disconnection or short ・ Main relay power supply voltage is 18 V or higher. ・ At least 70 min-1 ・ DTC: 0205, 0612, 1262 are not detected. DTC setting conditions

No No. 5 cylinder injector monitor input signal

Trouble judgment time About 2.4 sec. Behavior during trouble

High engine vibration, unstable idling speed, output reduction, revving problem Back-up: No. 5 cylinder injector injection stop, EGR stop

206 No. 6 cylinder injector drive system disconnection No. 6 cylinder injector electrical wiring disconnection or short ・ Main relay power supply voltage is 18 V or higher. ・ At least 70 min-1 ・ DTC: 0206, 0612, 1262 are not detected. No No. 6 cylinder injector monitor input signal About 2.4 sec. High engine vibration, unstable idling speed, output reduction, revving problem Back-up: No. 6 cylinder injector injection stop, EGR stop

0219 Overrun Abnormally high engine rotation Key switch input voltage is 18 V or higher. When the engine speed exceeded the set speed SH300: 2000 min-1 SH330: 2250 min-1 About 1 sec. Output reduction Back-up: Injection quantity restriction 1 If engine speed falls, control is released.

0237 Boost pressure sensor abnormality (abnormally low voltage) Sensor or harness disconnection, short, breakage ・ Key switch input voltage is 18 V or higher. ・ DTC: 1630, 1634 are not detected. Boost pressure sensor voltage is below 0.1 V.

0238 Boost pressure sensor abnormality (abnormally high voltage) Sensor or harness short ・ Key switch input voltage is 18 V or higher. ・ DTC: 1630, 1634 are not detected. Boost pressure sensor voltage is above 4.9 V. About 3 sec. Effect on machine operationality Back-up: Boost pressure default value setting (150 kPa) Boost pressure correction/EGR stop

About 3 sec. Black smoke produced Back-up: Boost pressure default value setting (160 kPa) Boost pressure correction/EGR stop

0335 CKP (crank position) sensor abnormality (no signal) Sensor or harness disconnection ・ CMP (cam position) sensor signal is normal. ・ DTC: 0335, 0336, 0340, 0341 and 1345 are not detected. ・ Engine is running. There is a CMP sensor signal, but not a CKP sensor signal. When it occurs in at least 14 out of 21 samples ・ Possibility of output reduction, white smoke, and high vibration ・ Possibility of engine stalling (restarting possible when the CMP sensor is normal) Back-up: Cam standard control when CMP sensor is normal Recovery from failure Conceivable cause

*1 Wiring problem (disconnection, short, high resistance) between ECM and No. 5 cylinder injector intermediate connector No. 5 cylinder injector terminal looseness Wiring problem (disconnection, high resistance) between No. 5 cylinder injector intermediate connector and No. 5 cylinder injector terminal No. 5 cylinder injector problem ECM internal problem *1 Wiring problem (disconnection, short, high resistance) between ECM and No. 6 cylinder injector intermediate connector No. 6 cylinder injector terminal looseness Wiring problem (disconnection, high resistance) between No. 6 cylinder injector intermediate connector and No. 6 cylinder injector terminal No. 6 cylinder injector problem ECM internal problem *2 Engine main unit abnormality (common rail, supply pump, injector) Necessary to check whether other DTCs appear Mechanical engine trouble (turbo damage, engine oil mixed in) ECM internal problem *2 Wiring problem (disconnection, short, high resistance) between ECM and boost pressure sensor Boost pressure sensor problem ECM internal problem *2 Wiring problem (disconnection, short, high resistance) between ECM and boost pressure sensor Boost pressure sensor problem ECM internal problem

*1 (cranking becomes long, about 10 sec.) Wiring problem (disconnection, short, high resistance) between ECM and CKP sensor CKP sensor problem ECM internal problem

DTC DTC name Detected item Preconditions when DTC is set

0336 CKP (crank position) sensor problem (signal abnormality) Tooth breakage, extra signals mixed in (short with other line) ・ CMP (cam position) sensor signal is normal. ・ DTC: 0335, 0336, 0340, 0341 and 1345 are not detected. ・ Engine is running.

0340 CMP (cam position) sensor abnormality (no signal) Sensor or harness disconnection ・ CKP (crank position) sensor signal is normal. ・ DTC: 0335, 0336, 0340, 0341, 1345 and 1635 are not detected. ・ Engine is running.

0341 CMP (cam position) sensor abnormality (signal abnormality) Tooth breakage, extra signals mixed in (short with other line) ・ CKP (crank position) sensor signal is normal. ・ DTC: 0335, 0336, 0340, 0341, 1345 and 1635 are not detected. ・ Engine is running.

0380 Glow relay circuit abnormality Relay or harness disconnection, short, breakage Key switch input power supply voltage is 16 V or higher and 32 V or lower.

0487 EGR position sensor abnormality Sensor or harness disconnection, short, breakage ・ Main relay input voltage is 18 V or higher. ・ DTC: 1630, 1635 are not detected. DTC setting conditions

CKP sensor signal pulse count does not match.

There is a CKP sensor signal, but not a CMP sensor signal.

CMP sensor signal pulse count does not match.

Glow relay monitor signal is different from the glow relay drive command signal. Input signals from EGR position sensors U, V, and W are all ON or all OFF.

Trouble judgment time When it occurs in at least 14 out of 21 samples Behavior during trouble

・ Possibility of output reduction, white smoke, and high vibration ・ Possibility of engine stalling (restarting possible when the CMP sensor is normal) Back-up: Cam standard control when CMP sensor is normal

When it occurs in at least 7 out of 8 samples

When it occurs in at least 7 out of 8 samples ・ No change in behavior while engine is rotating ・ Restarting not possible after engine stalled Back-up: While engine rotating: Crank standard when CKP sensor is normal After engine stops: Cylinder identification not functioning (restarting not possible) ・ No change in behavior while engine is rotating ・ Restarting not possible after engine stalled Back-up: While engine rotating: Crank standard when CKP sensor is normal After engine stops: Restarting not possible because cylinder identification not functioning

When it occurs in at least 25 out of 30 samples Low-temperature starting problem Back-up: No back-up operation

About 3 sec. Effect of exhaust gas Back-up: EGR valve allclose command

0488 EGR valve control abnormality

0522 Oil pressure sensor abnormality (abnormally low voltage) 0523 Oil pressure sensor abnormality (abnormally high voltage) Drive motor side disconnection, valve section pinching, sticking

Sensor or harness disconnection, short, breakage ・ DTC: 0487, 0488, 1630, and 1635 are not detected. ・ Main relay voltage is higher than 20 V and lower than 32 V. ・ Difference between target EGR degree of opening and actual degree of opening is 20 % or less. ・ Key switch input voltage is 18 V or higher. ・ DTC: 1633 is not detected. Difference between target valve lift and the actual position exceeds 20 %.

Oil pressure sensor voltage is below 0.1 V.

Sensor or harness short ・ Key switch input voltage is 18 V or higher. ・ DTC: 1633 is not detected. Oil pressure sensor voltage is above 4.85 V. About 10 sec. Effect of exhaust gas Back-up: EGR valve allclose command

About 4 sec. No effect on operation Back-up: No back-up operation

About 4 sec. No effect on operation Back-up: No back-up operation

0601 ROM abnormality 0603 EEPROM abnormality ROM abnormality EEPROM abnormality - ROM trouble Reflash failure

- Engine stop Back-up: Engine stop - EEPROM trouble - No effect on operation Back-up: No back-up operation Recovery from failure *1 (cranking becomes long, about 10 sec.) Conceivable cause

Wiring problem (short) between ECM and CKP sensor CKP sensor problem Flywheel ring gear tooth missing ECM internal problem

*1 (cranking becomes long, about 10 sec.) Wiring problem (disconnection, short, high resistance) between ECM and CMP sensor CMP sensor problem Cam gear abnormality Supply pump problem ECM internal problem

*1 (cranking becomes long, about 10 sec.) Wiring problem (short) between ECM and CMP sensor CMP sensor problem Cam gear abnormality Supply pump problem ECM internal problem

*1 Wiring problem (disconnection, short, high resistance) between fuse and glow relay Glow relay problem ECM internal problem *2 Wiring problem (disconnection, short, high resistance) between ECM and EGR position sensor EGR valve (position sensor) problem ECM internal problem *1 Wiring problem (disconnection, short, high resistance) between ECM and EGR motor EGR valve problem ECM internal problem

*2 Wiring problem (short) between ECM and oil pressure sensor Oil pressure sensor problem ECM internal problem *2 Wiring problem (disconnection, short, high resistance) between ECM and oil pressure sensor Oil pressure sensor problem ECM internal problem *2 ECM internal problem

*2 ECM internal problem

DTC DTC name Detected item Preconditions when DTC is set DTC setting conditions

0606 CPU abnormality CPU abnormality - SUB-CPU detects a main CPU abnormality for 0.1 sec. after key is switched ON. SUB-CPU detects a main CPU abnormality for 0.1 sec. after key is switched ON.

Trouble judgment time About the same time as occurrence

About the same time as occurrence Behavior during trouble

Output reduction Back-up: Injection restriction quantity 2 (multi-injection stop) SUB-CPU stops the CPU. Starting not possible Back-up: Injection restriction quantity 2 (multi-injection stop) SUB-CPU stops the CPU.

Abnormality with IC monitoring CPU

0611 Charge circuit abnormality (bank 1)

0612 Charge circuit abnormality (bank 2)

1093 No pump pressure send SUB-CPU abnormality

ECU charge circuit 1 abnormality (internal burning, disconnections, etc.)

ECU charge circuit 2 abnormality (internal burning, disconnections, etc.)

Fuel leak (large) ・ 0.48 sec. or more passed after key is switched ON. ・ Key switch input power supply voltage is higher than 16 V.

Main relay power supply voltage is 18 V or higher. RUN-SUB pulse (communication between CPU and SUB-CPU) is unchanged for 0.02 sec. or longer. ECU internal charge circuit bank 1 voltage is low.

Main relay power supply voltage is 18 V or higher. ECU internal charge circuit bank 2 voltage is low.

・ Key switch input voltage is 18 V or higher. ・ DTC: 0092, 0192, 0193, 1093, 1291, 1292 and 1635 are not detected. ・ Engine coolant tempera・ ture is 60 ℃ or more. 375 min-1 or more. Actual common rail pressure is at least 30 MPa below the target common rail pressure. About the same time as occurrence Output reduction Back-up: Injection quantity restriction 1

About 1.5 sec. High engine vibration, unstable idling speed, output reduction, revving problems, and engine stalling are possible. Back-up: Common 1 stop (No. 1, 4 cylinder stop), EGR stop

About 1.5 sec.

High engine vibration, unstable idling speed, output reduction, revving problems, and engine stalling are possible. Back-up: Common 2 stop (No. 2, 3 cylinder stop), EGR stop About 5 sec. High engine vibration, unstable idling speed, output reduction, revving problems, black smoke, engine stalling, and excess output are possible. Back-up: Injection quantity restriction 3 (multi-injection stop) Target common rail pressure upper limit (80 MPa)

1095 Pressure limiter open Pressure limiter opened. ・ Key switch input voltage is 18 V or higher. ・ DTC: 0192, 0193, 1095, 1630 and 1635 are not detected. ・ At least 50 min-1 ・ Pressure limiter opens. ・ Common rail pressure exceeds 200

MPa. About 1 sec. Output reduction, hunting Back-up: Injection quantity restriction 1

1112 Boost temperature sensor abnormality (abnormally low voltage) Sensor or harness disconnection, short, breakage ・ Key switch input voltage is 18 V or higher. ・ DTC: 1634 is not detected. Boost temperature sensor voltage is below 0.1 V. About 4 sec. No effect on operation Back-up: No back-up operation Recovery from failure Conceivable cause

*2 ECM internal problem

Diagnosed for only 0.1 sec. after key is switched

ON. *2 ECM internal problem

*2 ECM terminal, ECM ground terminal problem (disconnection, high resistance) ECM internal problem

*2 ECM terminal, ECM ground terminal problem (disconnection, high resistance) ECM internal problem

*1 Fuel system clogged, line (hose) blocked Charge fuel pump problem (discharge problem) Wiring problem (short) between ECM and common rail pressure sensor Injector problem Supply pump problem Common rail pressure sensor problem (common rail) Pressure limiter problem (common rail) *1 Fuel system line (hose), etc. blocked Air in fuel system (check hose connection) Pressure limiter problem Common rail pressure sensor problem Wiring problem (short) between ECM and common rail pressure sensor Supply pump problem ECM internal problem *2 Wiring problem (disconnection, short, high resistance) between ECM and boost temperature sensor Boost temperature sensor problem ECM internal problem

DTC DTC name Detected item Preconditions when DTC is set

1113 Boost temperature sensor abnormality (abnormally high voltage) Sensor or harness short

1173 Overheat Overheat status ・ Key switch input voltage is 18 V or higher. ・ DTC: 1634 is not detected. ・ Engine coolant temperature is 50 ℃ or higher. ・ At least 5 min. passed after start. ・ Key switch input voltage is 18 V or higher. ・ DTC: 0117, 0118, 1630, and 1633 are not detected. ・ Engine must be running. DTC setting conditions

Boost temperature sensor voltage is above 4.95 V Trouble judgment time Behavior during trouble

About 4 sec. No effect on operation Back-up: No back-up operation

Engine coolant temperature is higher than 110 ℃ . About 5 sec. No effect on operation Back-up: No back-up operation

1261 Injector common 1 drive system abnormality

1262 Injector common 2 drive system abnormality

1345 CMP (cam position) sensor out of phase

1625 Main relay system abnormality

1630 A/D conversion abnormality Injector common 1 side electrical wiring disconnection or short, EDU output section abnormality Injector common 2 side electrical wiring disconnection or short, EDU output section abnormality Camshaft gear/ crankshaft gear installation angle deviation and breakage ・ Main relay power supply voltage is 18 V or higher. ・ At least 70 min-1 ・ DTC: None of 0201, 0202, 0203, 0611, and 1261 is detected.

・ Main relay power supply voltage is 18 V or higher. ・ At least 70 min-1 ・ DTC: 0204, 0205, 0206, 0612, or 1262 not detected

・ Key switch input voltage is 18 V or higher. ・ DTC: 0335, 0336, 0340, 0341, 1345 and 1635 are not detected. ・ CMP sensor signal is normal. ・ CKP (crank position) sensor signal is normal. No injector 1, 2 and 3 monitor input signals

No injector 4, 5 and 6 monitor input signals

No correct cam pulse in crank gap position

Harness disconnection/ GND short, relay stuck OFF ・ Key switch input voltage is 18 V or higher. ・ DTC: 1630 is not detected. ・ 3 sec. or more passed after key is switched ON. ・ Main relay drive command ON

Harness +B short, relay stuck ON DTC: 0606, 1625 are not detected. Main relay input power supply voltage is 1 V or lower.

Even when main relay coil OFF command is issued, relay does not cut off.

A/D conversion abnormality - A/D conversion is not possible. About 3 sec. High engine vibration, unstable idling speed, output reduction, revving problems, and engine stalling are possible. Back-up: Common 1 stop (No. 1, 4 cylinder stop), EGR stop About 3 sec. High engine vibration, unstable idling speed, output reduction, revving problems, and engine stalling are possible. Back-up: Common 2 stop (No. 2, 3 cylinder stop), EGR stop

When it occurs in at least 7 out of 8 samples

・ No change in behavior while engine is rotating ・ Restarting not possible after engine stalled Back-up: While engine rotating: CKP standard when CKP sensor is normal After engine stops: Cylinder identification not functioning (restarting not possible) About 2 sec. Engine cannot be started. Back-up: No back-up operation

About 5 sec. Machine power supply does not cut off. Back-up: No back-up operation

Immediate implementat ion Output reduction, black smoke produced Back-up: Analog sensor system default processing Injection quantity restriction 3 (multi-injection stop) Target common rail pressure upper limit (80 MPa) Recovery from failure Conceivable cause

*2 Wiring problem (disconnection, short, high resistance) between ECM and boost temperature sensor Boost temperature sensor problem ECM internal problem

*2 Wiring problem (short) between ECM and ECT (engine coolant temperature) sensor Engine cooling system problem (radiator clog) Engine coolant level too low Engine coolant temperature sensor problem *1 No 1, 4 cylinder injector harness problem (disconnection, short) Injector problem ECM problem

*1 No 2, 3 cylinder injector harness problem (disconnection, short) Injector problem ECM problem

*1 (Cranking becomes long, about 10 sec.) Wiring problem (disconnection, short, high resistance) between ECM and CMP sensor Camshaft gear installation problem Flywheel installation problem

*2 Wiring problem (disconnection, short, high resistance) between ECM and main relay Wiring problem (disconnection, short, high resistance) between fusible link and main relay Main relay problem *1 ECM internal problem

*2 ECM internal problem

DTC DTC name Detected item Preconditions when DTC is set

1632 5 V power supply 2 voltage abnormality (atmospheric pressure sensor power supply) ・ DTC: 1630 is not detected. ・ Key switch input power supply voltage is higher than 16 V and lower than 32 V.

1633 5 V power supply 3 voltage abnormality (oil pressure sensor power supply) ・ DTC: 1630 is not detected. ・ Key switch input power supply voltage is higher than 16 V and lower than 32 V.

1634 5 V power supply 4 voltage abnormality (boost pressure sensor power supply) 1635 5 V power supply 5 voltage abnormality (common rail pressure sensor, EGR position sensor power supply) 2104 CAN Bus abnormality CAN communicatio n abnormality ・ DTC: 1630 is not detected. ・ Key switch input power supply voltage is higher than 16 V and lower than 32 V.

・ DTC: 1630 is not detected. ・ Key switch input power supply voltage is higher than 16 V and lower than 32 V.

Key switch input power supply voltage is 12 V or higher. DTC setting conditions

When battery voltage is from 16 V to 32 V, the key switch power supply voltage is 5.5 V or higher or 4.5 V or lower.

Trouble judgment time About 0.5 sec.

When battery voltage is from 16 V to 32 V, the key switch power supply voltage is 5.5 V or higher or 4.5 V or lower. About 0.5 sec.

When battery voltage is from 16 V to 32 V, the key switch power supply voltage is 5.5 V or higher or 4.5 V or lower. About 0.5 sec. Behavior during trouble

For backup equivalent to 2500 m ・ Black smoke at high altitude ・ Output shortage at low altitude Back-up: Same as atmospheric pressure or IAT (intake air temperature) sensor abnormality Startability deteriorates at low temperatures or black smoke emission is possible, output lowering or effect on machine operationality depending on conditions. Back-up: Same as engine coolant temperature, fuel temperature, or oil pressure sensor abnormality Effect on machine operationality Back-up: Same as boost pressure or boost temperature sensor abnormality

When battery voltage is from 16 V to 32 V, the key switch power supply voltage is 5.5 V or higher or 4.5 V or lower. About 0.5 sec. Engine blow up, output lowering, black smoke emission, engine stall are possible. Back-up: Same as common rail pressure sensor or EGR position sensor abnormality

Bus off detection About 1 sec. Set to idle speed. Back-up: Running at 1350 min-1

2106 CAN time-out abnormality CAN communicatio n abnormality ・ DTC: 2104 is not detected. ・ Key switch input power supply voltage is 20 V or higher. Specified time, CAN data reception is not established. About 1 sec. Set to idle speed. Back-up: Running at 1350 min-1 Recovery from failure Conceivable cause

*2 Power supply circuit wiring problem (short) between ECM and atmospheric pressure sensor ECM internal problem

*2 Power supply circuit wiring problem (short) between ECM and oil pressure sensor ECM internal problem

*2 Power supply circuit wiring problem (short) between ECM and boost pressure sensor ECM internal problem

*2 Power supply circuit wiring problem (short) between ECM and common rail pressure sensor ECM internal problem

*2 Wiring problem (disconnection, short, high resistance) between ECM and computer A ECM internal problem Computer A internal problem *2 Wiring problem (disconnection, short, high resistance) between ECM and computer A ECM internal problem, computer A internal problem